Hello there,
I am Paris, one of the creators of Vaulty. Thanks for your comment.
Vaulty end-to-end encrypts/decrypts data in the browser. No sensitive information is ever being transferred over the wire.
This is actually the whole point. The easiest way to share end-to-end encrypted data even over insecure channels.
I hope I answered your concern! You can give it a try for free to see how it works at https://vaulty.tools/guest/vaults/.